vertical-align

Summary

The vertical-align CSS property specifies the vertical alignment of an inline or table-cell box.

Initial value	`baseline`
Applies to	inline-level and table-cell elements. It also applies to `::first-letter` and `::first-line`.
Inherited	no
Percentages	refer to the `line-height` of the element itself
Media	visual
Computed value	for percentage and length values, the absolute length, otherwise the keyword as specified
Animatable	yes, as a length
Canonical order	the unique non-ambiguous order defined by the formal grammar

Syntax

Formal syntax: baseline | sub | super | text-top | text-bottom | middle | top | bottom | <percentage> | <length>

vertical-align: baseline     /* keyword values */
vertical-align: sub
vertical-align: super
vertical-align: text-top
vertical-align: text-bottom
vertical-align: middle
vertical-align: top
vertical-align: bottom
vertical-align: 10em          /* <length> values */
vertical-align: 4px
vertical-align: 20%           /* <percentage> values */

vertical-align: inherit

Values (for inline elements)

Most of the values vertically align the element relative to its parent element:

baseline: Aligns the baseline of the element with the baseline of its parent. The baseline of some replaced elements, like <textarea> is not specified by the HTML specification, meaning that their behavior with this keyword may change from one browser to the other.
sub: Aligns the baseline of the element with the subscript-baseline of its parent.
super: Aligns the baseline of the element with the superscript-baseline of its parent.
text-top: Aligns the top of the element with the top of the parent element's font.
text-bottom: Aligns the bottom of the element with the bottom of the parent element's font.
middle: Aligns the middle of the element with the middle of lowercase letters in the parent.
<length>: Aligns the baseline of the element at the given length above the baseline of its parent.
<percentage>: Like <length> values, with the percentage being a percent of the line-height property.

(Negative values are allowed for <length> and <percentage>.)

The following two values vertically align the element relative to the entire line rather than relative to its parent:

top: Align the top of the element and its descendants with the top of the entire line.
bottom: Align the bottom of the element and its descendants with the bottom of the entire line.

For elements that do not have a baseline, the bottom margin edge is used instead.

Values (for table cells)

baseline (and sub, super, text-top, text-bottom, <length>, and <percentage>): Align the baseline of the cell with the baseline of all other cells in the row that are baseline-aligned.
top: Align the top padding edge of the cell with the top of the row.
middle: Center the padding box of the cell within the row.
bottom: Align the bottom padding edge of the cell with the bottom of the row.

Negative values are allowed.

Examples

img {
	vertical-align: bottom;
}

Specifications

Specification	Status	Comment
CSS Transitions The definition of 'vertical-align' in that specification.	Working Draft	Defines `visibility` as animatable.
CSS Level 2 (Revision 1) The definition of 'vertical-align' in that specification.	Recommendation	Add the `<length>` value and allows it to be applied to element with a `display` type of `table-cell`.
CSS Level 1 The definition of 'vertical-align' in that specification.	Recommendation	Initial definition.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	1.0	1.0 (1.7 or earlier)	4.0	4.0	1.0 (85)

Feature	Android	Chrome for Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	1.0	1.0	1.0 (1.0)	(Yes)	(Yes)	1.0